Rangy defender who reads the play very well, Jacobs was acquired via the much-publicised Lochlan Veale trade that effectively sent Jade Rawlings to the Western Bulldogs.

Jacobs established himself in Essendon's strong backline over 81 games, including the 2001 Grand Final loss to the Brisbane Lions. He has shown excellent ability to zone off his direct opponent and mark or spoil effectively.

Unfortunately Jacobs had a disgraceful 2004. He started with a blaze of glory by keeping David Neitz goalless in Round 1, but it all fell apart after that. Some deplorable efforts were followed by a hamstring injury, than an infamous drink-driving episode that saw him lie to the club.

He redeemed himself a little in 2005, with improved application and some leadership in a young defence. Jacobs was much better in 2006 and 2007, but the problem was he was rarely on the park due to a combination of injuries.